Sequence entry & gel merging program for IBM PC

Hi,
What program do you suggest for sequence entry (preferably with speaking backs
similar to SeqSpeak for a Mac) and following gel-merging capabilities which
runs on IBM-PC (free or shareware).
Thanks in advance to all who would reply. You can reply directly to me and I
would sum up all interesting messages sent and post them -- this would probably
clean up a little bit everybodies' mail boxes.
Gene Shpaer